from utils.excel_util import ExcelUtil


class ExcelUtilTest():
    def test_to_column_name(self):
        assert ExcelUtil.to_column_name(1) == "A"
        assert ExcelUtil.to_column_name(26) == "Z"
        assert ExcelUtil.to_column_name(27) == "AA"
        assert ExcelUtil.to_column_name(703) == "AAA"
